| Martinsburg Township, IL (Township) |
| Martinsville, IL (City) |
| Martinsville, OH (Village) |
| Martinsville, VA (City) |
| Martinsville, IN (City) |
| Martinsville Township, IL (Township) |
| Martinton, IL (Village) |
| Martinton Township, IL (Township) |
| Martiny Township, MI (Township) |
| Marvell, AR (City) |
| Marvin, SD (Town) |
| Marvin, NC (Village) |
| Mary, MN (Township) |
| Mary Ann Township, OH (Township) |
| Mary Esther , FL (City) |
